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  1. EmmaRainboe

    Is this a male or female?

    Barring is connect to the Z sex chromosome. In chickens males have two Z chromosomes (ZZ) and females have one Z and one W (ZW). This means that males can carry 0, 1, or 2 barring genes while females can carry 0 or 1. That means a bird with double barring (two barring genes) has to be male...
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